The 29-year-old's "girl-next-door charm" is said to have made her the producers' first choice for the female lead.

Harry Potter star Emma Watson and Twilight actress Kristen Stewart have also been linked to the role, while Ryan Gosling and The Vampire Diaries star Ian Somerhalder are rumored to be in the running to play Christian Grey.

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Ian Somerhalder
A firm fan favourite for the movie, Ian Somerhalder topped a Digital Spy poll to find the ideal Christian Grey in June. The Vampire Diaries actor says he'd love to do the movie with Angelina Jolie directing. However, it was speculated in summer 2013 that author EL James is not considering Somerhalder for the role of Christian.
Copyright: Rex Features Matt Baron/BEI
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